// // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
// // for details. All rights reserved. Use of this source code is governed by a
// // BSD-style license that can be found in the LICENSE file.

// DateTime toSecondResolution(DateTime dt) {
//   if (dt.millisecond == 0) return dt;
//   return dt.subtract(Duration(milliseconds: dt.millisecond));
// }
